One of the most important elements when SEO’ing a website is getting the keywords in the alt tags. This is especially true of most modern websites where the pages are built using a generic database.
It’s important that the if you’re using a generic template throughout the site that consideration be placed on which keywords are used – this then has to be balanced out by the text that is being put on the page – the text and the generic alt tags have to be relevant, and on those pages that will go into more detail about your key keywords it’s important that the % of keywords is balanced so you’re not seen as being a keyword stuffing website – ie a spammer.
Search engine optimisation is a balancing act, and to do SEO right it’s always best not to use templates, to make sure that every single page is specific – however in the real world this isn’t always possible because you won’t have enough man hours in the day to be that anal about things.
The other fatal flaw is to over look them all together, remember search engines do put a lot of weight on the alt tags keywords – some would argue more weight is put on these than the anchor link text – and they get far more weight than title tags do – so don’t worry too much about the title tags!!